Assuming that the nests are bird's nests and the data is a data gathered by the biologists about those nests.
A hurricane would cause some damage to the nests that is existent and cause a remarkably low count even during breeding season. It would also influence later birds because of population weakening due to the hurricane.
First gap is BY USING MAGNETS
2nd is ELECTROLYSIS
3rd is EVAPORATION
6.8x10^5? Scientific notation
